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A154081
Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 10.
0
2772, 12494, 23493, 40947, 41096, 46487, 43627, 32038, 17016, 8815, 3707, 2835, 1541, 2032, 1008, 876, 876, 832, 788, 744, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696
OFFSET
5,1
COMMENTS
Value 696 starts at n=25 and continues through at least n=52.
CROSSREFS
Sequence in context: A046332 A046380 A249228 * A362876 A099691 A231739
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2009
STATUS
approved